@article{oai:shizuoka.repo.nii.ac.jp:00014011,
 author = {藤田, 真浩 and 池谷, 勇樹 and 可児, 潤也 and 西垣, 正勝},
 issue = {9},
 journal = {情報処理学会論文誌},
 month = {Sep},
 note = {application/pdf},
 pages = {1954--1964},
 title = {Locimetric型メンタルローテーションCAPTCHA},
 volume = {57},
 year = {2016}
}